背景照明background: n. 1.后景,背景;基本情況;(紡織品等的)底子;出身 ...illuminance: n. 【物理學(xué)】照度,施照度。 adaptation illuminance: 適應(yīng)亮度cylindric illuminance: 柱面照度emergency illuminance: 應(yīng)急照明下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯